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# Biomechanics 2013 part 2

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### Transcript

• 1. All will be able to:•State and explain the factors that effect projectile motion•Explain angular motion including the conservation of angular momentum andthe relationship between the moment of inertia and angular velocitySome will also be able to:•Apply this knowledge to exam questionsLearningOutcomes are:
• 2. Projectile motion:Angle of releaseParabolic curveHorizontal componentVertical componentHeight of releaseSpeed of releaseAngular motion:FootfallNegative impulsePositive impulseZero impulse(Force time graphs toshow acceleration,deceleration andconstant velocity)Define the following terms and give an equation or applied examas applicable:Angular velocity, angular acceleration, angular momentumMoment of inertia, angular, moment, moment arm, resistance armEffort arm, principle of moments, angular movementConservation of angular movementRadian, relationship between moment of inertia and angularvelocity
• 3. he final stage of an endurance race often involves a sprint finis5 Using Newton’s Second Law of Motion, explain how an athlets able to accelerate towards the finish line. (3 marks)Explain how a gymnast can alter thespeed of rotation during flight (7)Using ‘Newton’s First’and ‘Second Laws ofMotion’, explain howthe swimmer dives offthe starting blocks. (4marks)